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Stenner 85MHP17 - User Manual

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Classic Series
INSTALLATION MANUAL
Metering Pumps
Manufactured Since 1957

Table of Contents

Questions and Answers

  • J
    John SanchezAug 17, 2025
    What to do if Stenner Water Pump has no output but the pump head rotates?
    • E
      Elizabeth EatonAug 18, 2025
      If your Stenner Water Pump head rotates but there's no output, consider these potential causes and solutions: * Replenish the solution if the solution tank is depleted. * Adjust the suction line to be 2–3" off the bottom of the tank to avoid sediment. * Inspect or replace the suction line if there's a leak. * Replace the compression ferrules if they are installed incorrectly or damaged. * Inspect and clean the injection point if it's clogged. * Clean and/or replace any clogged suction/discharge tubing or the injection check valve. * Replace the pump tube if its life is exhausted.
  • S
    Steven RobinsonAug 20, 2025
    How to fix a leaking tube on a Stenner 85MHP17 Water Pump?
    • K
      Katherine PayneAug 20, 2025
      If the tube on your Stenner Water Pump is leaking, here are a few things to check: * Replace the pump tube at routine intervals, as the tube may have ruptured. * Clean the injection fitting and replace the pump tube if there's a calcium or mineral deposit. * Check the tube's PSI rating against the system pressure and replace it accordingly if there's excessive back pressure. * Replace the tube according to the instructions if it's twisted. * Replace the tube and center it if it is not centered.
  • M
    Mark RoseAug 22, 2025
    Why is the output low on my Stenner Water Pump, even though the pump head rotates?
    • M
      mackenziefarrellAug 23, 2025
      If your Stenner Water Pump head rotates but the output is low, the following could be the cause: * Replace the pump tube if it is worn. * Install new rollers or roller assembly if rollers are missing or cracked. * Inspect and clean the injection point if it is restricted. * Check the tube psi rating against system pressure; replace accordingly if there is high system back pressure.
  • R
    Richard BishopAug 25, 2025
    What causes a Stenner Water Pump tube to have a shortened life?
    • J
      Jennifer AndersonAug 26, 2025
      Several factors can shorten the tube life of your Stenner Water Pump: * Check chemical compatibility, as chemical attack can degrade the tube. * Remove any mineral deposits at the injection point and replace the pump tube. * Maintain the suction line 2–3" above the bottom of the tank to prevent sediment blockage at the check valve. * Replace the check valve duckbill at every tube change. * Reverse the duckbill orientation if it's in the wrong position. * Refer to tube replacement instructions if the tube was manually stretched to lock into the discharge side slot. * Clean the roller assembly or replace it if seized rollers caused abrasion on the tube.
  • D
    Daniel JacobsAug 27, 2025
    Why is the output of my Stenner Water Pump too high?
    • A
      allisonjillianAug 27, 2025
      If the output of your Stenner Water Pump is too high, this could be due to: * Replacing the tube with the correct size if the current one is incorrect. * Replacing the roller assembly if it is broken. * For a malfunctioning Feed Rate Control or incorrect model of motor, refer to their respective sections.
  • M
    Mackenzie BoydAug 30, 2025
    Why is the indexing erratic on my Stenner 85MHP17 Water Pump?
    • J
      John ArmstrongAug 30, 2025
      Erratic indexing on your Stenner Water Pump can be caused by: * Turning over or replacing the index plate if it is worn. * Replacing the variable cam if it is worn. * Replacing the index pin and lifter assembly if the lifter is worn.
  • D
    Douglas DennisSep 2, 2025
    What causes a Stenner 85MHP17 head to stop rotating?
    • A
      Audrey GeorgeSep 2, 2025
      If the pump head on your Stenner Water Pump is not rotating, consider the following: * Turn over or replace the index plate if it is worn. * Refer to the Motor Section for problems with the gear motor. * Replace the roller assembly if it is stripped. * Tighten the holder into the spider assembly if the index pin holder backed out. * Replace the index pin and lifter assembly if the index pin is broken.
  • J
    jasongraySep 4, 2025
    What to do if the Stenner 85MHP17 adjustment ring turns, but the output doesn’t change?
    • S
      suzannehooverSep 4, 2025
      If the adjustment ring on your Stenner Water Pump turns but the output doesn’t change, it could be because the variable cam has disengaged from the ring. Re-insert the 90? end into the ring. Alternatively, the variable cam might be broken, requiring a replacement.
  • J
    James SchmidtSep 6, 2025
    What does it mean if there's visible fluid in the Stenner 85MHP17 Water Pump head?
    • J
      Juan GatesSep 6, 2025
      Visible fluid in the Stenner Water Pump head usually indicates a pump tube rupture or leak. Replace the pump tube, ferrules, and center the tube.
  • M
    millerlauraSep 9, 2025
    Why does the Stenner 85MHP17 head rotate continuously?
    • T
      twoodsSep 9, 2025
      If your Stenner Water Pump head rotates continuously, it is possible that the variable cam is installed incorrectly. Try replacing or re-inserting the variable cam.

Summary

Warranty and Service Policy

Limited Warranty Details

Explains the one-year warranty, exclusions, and limitations.

Safety Information

General Warnings

Warns about hazards causing death, injury, or damage if ignored.

Electrical Hazards

Details risks of electrical shock, hazardous voltage, and grounding.

Operational Hazards

Covers explosion, chemical exposure, and fire hazards.

Additional Safety Information

Pump Identification

Outputs 45 Series

Outputs 85 Series

Outputs 100 Series

Outputs 170 Series

100 MDC Series Outputs

100 MDC Series Inner Head Outputs

170 MDC Series Outputs

170 MDC Series Inner Head Outputs

Installation Safety Instructions

General Installation Safety

Covers mandatory actions and general safety before installation.

Pump Mounting Procedures

Critical Mounting Orientations

Warnings regarding pump head orientation and chemical fume risks.

Installation Diagram

Spill Recovery System

Suction Line Installation

Discharge Line Installation

Hazardous Pressure Warning

Warning to shut off water and bleed pressure before discharge line work.

Discharge Line Connections

Pressure and Model Specifics

Warnings about hazardous pressure and specific instructions for different models.

Troubleshooting: Motor Issues

Troubleshooting: Feed Rate Control

Troubleshooting: Pump Head Issues

Troubleshooting: Pump Tube Issues

Pump Tube Problems

Lists problems and potential causes for pump tube issues.

Tube Replacement Safety

Chemical Exposure Risks

Advises checking pump tubes for leaks and using PPE.

Pinch Point and Pressure Hazards

Warns of pinch hazards and hazardous pressure during replacement.

Tube Replacement Preparation

Removing the Old Pump Tube

Installing the New Pump Tube

Critical Lubrication Warning

Critical warning against lubricating specific components.

Centering the New Pump Tube

Motor Exploded View

Feed Rate Control Exploded View

Pump Head Exploded View

Pump Tubes

Check Valves

Stenner 85MHP17 Specifications

General IconGeneral
Model85MHP17
TypePeristaltic Pump
Maximum Pressure100 psi
Voltage120V AC
Frequency60 Hz
Power SupplyElectric
Hose MaterialSantoprene
Hose Size1/4 inch
Maximum Output17 gpd (64 lpd)

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